Terminations

All our High Power Dry & Water Cooled Loads are designed with reliability and mechanical strength as the primary concerns and offered in both finned and unfinned designs. The peak power capability of one of our devices will in general be the same as the connecting waveguide. If desired, water cooling applied to the external surface of these loads greatly increases the average power capability.

Our standard line of High Power Dummy Loads have been designed to satisfy microwave industry requirements where reliable performance, rugged construction and reasonable cost are the primary considerations. All models are built using an ultra-high temperature refractory ceramic as the microwave absorber. This absorber is then encapsulated within an intimately – fitted and welded aluminum housing which ensures maximum heat transfer at the rated power levels.

All welded loads are designed to exceed the electrical requirements of MIL-DTL-3954. Flanges can be interchanged between CPR and UG Types for giving waveguide size. Custom flange configurations and mounting are available. All materials in direct contact with the liquid cooling are designed for compatibility.

Low and Medium Power Loads are manufactured using the same high power refractory grade ceramic as our high power loads. These elements are attached to the waveguide walls using a high temperature bonding agent. These loads are great alternatives when the lower power allows for their use as they are usually lighter and smaller in size then high power alternates.

Low and Medium Power Loads are available in aluminum and brass and with either CPR of UG Type for given waveguide size.

High Power Water Loads provide exceptional power handling capabilities not reasonably attained using dry load design. Cooling is achieved by the use of internal liquid flow and is an extremely efficient method of dissipating the heat generated by microwave energy.

High Power Coaxial Water Loads are also available. These directly coupled water loads are ruggedbroad band devices that employ the cooling as the absorptive media. Cooling can be with water or a water glycol mixture.

Ceramic Block Window Type

These units use a ceramic window to directly couple the RF energy into the cooling media. This type of design allows for the absorption of very high power levels while giving the user the added benefit of a smaller size when compared to refractory grade absorptive material.

Bandwidth is limited to 15% and a stable inlet coolant range must be met for stable performance. The maximum inlet coolant temperature is driving by the average power of the application. These designs can accommodate cooling mixtures of water, water/glycol. For peak power application pressurization is required. Note that for Vacuum use these units can be TiN PVD for mitigation of multipaction.

Teflon Antenna Type

These units use a PTFE Antenna in the water column to couple the RF into the cooling media. This type of design allows for the absorption of high power levels while giving the user the added benefit of a small size when compared to refractory grade absorptive material.

These units are typically larger than the Ceramic Block Window type. Bandwidth is limited to approximately 35% and a stable inlet coolant range must be met for stable performance. The maximum inlet coolant temperature is driving by the average power of the application. These designs can accommodate cooling mixtures of water, water/glycol. For peak power application pressurization is required.